A study of high pressure 1,3-butadiene laminar burning velocity

Hao Zhao, Zunhua Zhang, Yacine Rezgui, Yiguang Ju

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The spherical flame speed of 1,3-butadiene is studied at 1-18atm in experiments and simulations. The presently measured 1,3-butadiene/air flame speeds are lower than the previous studies. It shows a large uncertainty in the reported measured flame speeds from the linear extrapolation and flow compression correction. At high pressure and fuel lean conditions, Zhou's 1,3-butadiene kinetic model (2018, in press) over-predicts the flame speeds significantly. According to the 1,3-butadiene flame speed sensitivity analysis, C0-C2 small hydrocarbon chemistry and addition reactions of 1,3-butadiene with O/H radicals dominate the reaction kinetics. Especially, the chain branching and termination reactions of 1,3-C4H6 + O = C2H3 + CH2CHO and 1,3-C4H6 + O = CH2O + C3H4-a have large uncertainties for the 1,3-butadiene flame speed prediction. By changing the branching ratio of these two competing 1,3-butadiene + O reactions and replacing the C0-C2 chemistry by HP mech (Zhao, 2017), an updated kinetic model is develop to predict the 1,3-butadiene high pressure flame speeds at both lean and rich conditions. It shows that the present model improves the predictions significantly, especially at the fuel lean condition.

Original languageEnglish
Title of host publicationAIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Edition210059
ISBN (Print)9781624105241
DOIs
Publication statusPublished - 2018
Externally publishedYes
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: 8 Jan 201812 Jan 2018

Publication series

NameAIAA Aerospace Sciences Meeting, 2018
Number210059

Conference

ConferenceAIAA Aerospace Sciences Meeting, 2018
CountryUnited States
CityKissimmee
Period8/01/1812/01/18

ASJC Scopus subject areas

  • Aerospace Engineering

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